Online PHP editor | output for bMGLc

<?php function roundup(int $v, int $p2) { return ($v + $p2 - 1) & ~($p2 - 1); } function bytesToBits(string $bytestring) { $bitstring = ''; if ($bytestring !== '') foreach (str_split(str_pad($bytestring, roundup(strlen($bytestring), 4), '0', STR_PAD_LEFT), 4) as $chunk) { $bitstring .= str_pad(base_convert(unpack('H*', $chunk)[1], 16, 2), strlen($chunk) * 8, '0', STR_PAD_LEFT); } return $bitstring; } function bitsToBytes(string $bitstring) { $bytestring = ''; if ($bitstring !== '') foreach (str_split(str_pad($bitstring, roundup(strlen($bitstring), 32), '0', STR_PAD_LEFT), 32) as $chunk) { $bytestring .= pack('H*', str_pad(base_convert($chunk, 2, 16), strlen($chunk) / 4, '0', STR_PAD_LEFT)); } return $bytestring; }